Porsche Su­percup

High­lights from Sil­ver­stone of the third round of the se­ries that only fea­tures iden­ti­cal Porsche 911 GT3 Cup rac­ing cars. Sean Edwards (right) has be­gun this sea­son in fly­ing form, hav­ing won the open­ing two rounds. On Sky 411, UPC 425.